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IBM
A21e
Hardware Manual
IBM A21e Hardware Manual
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ThinkPad A21e, A22e, i 1800
Product overview .
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. 39
Specifications .
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. 39
Status indicators .
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. 41
FRU Tests .
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. 43
Fn key combinations .
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. 44
Symptom-to-FRU index .
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. 46
Numeric error codes .
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. 46
Error messages
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. 49
Beep symptoms
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. 50
No beep symptoms
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. 50
LCD-related symptoms .
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. 51
Intermittent problems .
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. 52
Undetermined problems .
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. 52
FRU replacement notices
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. 53
Screw notices .
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. 53
Retaining serial numbers.
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. 54
Restoring the serial number of the system unit
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Retaining the UUID
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. 54
Removing and replacing a FRU.
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. 56
1010 Battery pack.
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. 57
1020 Backup battery .
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. 58
1030 Hard-disk drive .
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. 60
1040 DIMM
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. 62
1050 Mini PCI adapter
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. 63
1060 Ultrabay 2000 device .
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. 66
1070 Keyboard
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. 67
1080 Keyboard CRU insulator .
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. 72
1090 Fan assembly .
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. 73
For models excepting MT2655-65x, 66x, 67x,
B5x, B6x, B7x .
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. 73
For MT2655-65x, 66x, 67x, B5x, B6x, B7x
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1100 CPU .
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. 77
1110 PC Card slot assembly
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1120 Hinge cover .
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. 81
1130 Keyboard bezel .
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1140 Speaker .
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. 86
For A21e series
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. 86
For A22e and i 1800 series .
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. 87
1150 Hard-disk bay
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. 89
1160 LED connector card
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. 91
1170 Ultrabay 2000 slot .
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. 93
1180 System board
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. 96
2010 LCD assembly .
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. 98
2020 Front bezel.
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. 104
12.1-in. LCD (only for A21e series)
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. 104
13.3-in. and 14.1-in. LCD .
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. 105
2030 Inverter card .
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. 106
12.1-in. LCD (only for A21e series)
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. 106
13.3-in. and 14.1-in. LCD .
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. 107
2040 LCD panel .
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. 108
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